The Trac-Car  UML Technology Models provide an architecture framework for  a head start on delivery of integration of applications, connected with existing technology.

The Portal/Workflow Domain Model describes the workflow for a business process. As workflows generally  involve  user interaction,  user access to a web interface, and the content displayed to the users is included in this package.

The User Access Domain Model electronic access by a user, using a user access account.  Users have access to functionality according to the user privileges of the user group to which the user belongs.

The Helpdesk Domain Model describes the trouble tickets issued by help desk operatives to manage incidents reported by web or telephone. It describes the actions taken to remediate the reported incident.

The Data Distribution Model describes a data centric message capability, that supports the OMG DDS (Object Management Group Data Distribution Service) standard.

It provides for message topics by business domain. Participants in the data distribution services can either be publishers of  or  subscribers to messages or both.

Domain data sources are described by topic fields and topic values, accessible by key fields.

The Messaging Domain Model describes the transport capability so send messages amongst different application systems.  Messaging is independent of data and content, so messages have to be interpreted at each node of the communications paths.

The Event Handling Domain Model describes triggered and scheduled events that cause automated actions in a technology system.  Workflows are often triggered by events.